Question: When did Cincinnati start the twinned administrative body in the year 1989?
Paraphrase: What did Cincinnati start the twinned administrative body in the year 1989?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q43196 p:P190 ?s . ?s ps:P190 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1989')) }